1<html lang="en"> 2<head> 3<title>Blackfin Built-in Functions - Using the GNU Compiler Collection (GCC)</title> 4<meta http-equiv="Content-Type" content="text/html"> 5<meta name="description" content="Using the GNU Compiler Collection (GCC)"> 6<meta name="generator" content="makeinfo 4.13"> 7<link title="Top" rel="start" href="index.html#Top"> 8<link rel="up" href="Target-Builtins.html#Target-Builtins" title="Target Builtins"> 9<link rel="prev" href="ARM-NEON-Intrinsics.html#ARM-NEON-Intrinsics" title="ARM NEON Intrinsics"> 10<link rel="next" href="FR_002dV-Built_002din-Functions.html#FR_002dV-Built_002din-Functions" title="FR-V Built-in Functions"> 11<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> 12<!-- 13Copyright (C) 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 141998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 152010 Free Software Foundation, Inc. 16 17Permission is granted to copy, distribute and/or modify this document 18under the terms of the GNU Free Documentation License, Version 1.3 or 19any later version published by the Free Software Foundation; with the 20Invariant Sections being ``Funding Free Software'', the Front-Cover 21Texts being (a) (see below), and with the Back-Cover Texts being (b) 22(see below). A copy of the license is included in the section entitled 23``GNU Free Documentation License''. 24 25(a) The FSF's Front-Cover Text is: 26 27 A GNU Manual 28 29(b) The FSF's Back-Cover Text is: 30 31 You have freedom to copy and modify this GNU Manual, like GNU 32 software. Copies published by the Free Software Foundation raise 33 funds for GNU development.--> 34<meta http-equiv="Content-Style-Type" content="text/css"> 35<style type="text/css"><!-- 36 pre.display { font-family:inherit } 37 pre.format { font-family:inherit } 38 pre.smalldisplay { font-family:inherit; font-size:smaller } 39 pre.smallformat { font-family:inherit; font-size:smaller } 40 pre.smallexample { font-size:smaller } 41 pre.smalllisp { font-size:smaller } 42 span.sc { font-variant:small-caps } 43 span.roman { font-family:serif; font-weight:normal; } 44 span.sansserif { font-family:sans-serif; font-weight:normal; } 45--></style> 46<link rel="stylesheet" type="text/css" href="../cs.css"> 47</head> 48<body> 49<div class="node"> 50<a name="Blackfin-Built-in-Functions"></a> 51<a name="Blackfin-Built_002din-Functions"></a> 52<p> 53Next: <a rel="next" accesskey="n" href="FR_002dV-Built_002din-Functions.html#FR_002dV-Built_002din-Functions">FR-V Built-in Functions</a>, 54Previous: <a rel="previous" accesskey="p" href="ARM-NEON-Intrinsics.html#ARM-NEON-Intrinsics">ARM NEON Intrinsics</a>, 55Up: <a rel="up" accesskey="u" href="Target-Builtins.html#Target-Builtins">Target Builtins</a> 56<hr> 57</div> 58 59<h4 class="subsection">6.54.4 Blackfin Built-in Functions</h4> 60 61<p>Currently, there are two Blackfin-specific built-in functions. These are 62used for generating <code>CSYNC</code> and <code>SSYNC</code> machine insns without 63using inline assembly; by using these built-in functions the compiler can 64automatically add workarounds for hardware errata involving these 65instructions. These functions are named as follows: 66 67<pre class="smallexample"> void __builtin_bfin_csync (void) 68 void __builtin_bfin_ssync (void) 69</pre> 70 </body></html> 71 72